What are the operational differences between normal diesel fuel used in cars and the Jet-A diesel type fuel used for some prop aircraft such as the Diamond DA62? I know that aircraft use Jet-A fuel, but could an airplane be run on car diesel?

$\begingroup$According to this it seems like Jet-A is actually worse for diesels. The reason to use it is that it is already available at airports (in Europe more than in US).$\endgroup$
– Jan HudecMay 30 '16 at 10:04

$\begingroup$I don't see that the supposed duplicate answers this question; it does lay out some of the characteristics of a few aviation fuels, but does not answer the question: can an aircraft diesel engine run on auto diesel instead of Jet-A? The answer to that is: it depends, but generally yes. I understand that the SMA diesel, for example, was largely designed to run on auto diesel, but the operators I have worked with use Jet-A due to availability and fuel quality.$\endgroup$
– J WaltersMay 31 '16 at 10:36

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$\begingroup$@JonathanWalters I do not agree that the original version was mainly about running aircraft with diesel. With your edit I agree that it can be reopened.$\endgroup$
– Federico♦May 31 '16 at 12:12

$\begingroup$There is an airframe modification required (at least on the DA42) to use diesel, but I don't know the extent of it (it may be a simple placard swap).$\endgroup$
– UnrecognizedFallingObjectApr 28 '17 at 0:37